Ok. This one is a trip: Tracers are seen as a result of the vision contorting drug that is LSD. I have never seen tracers on Mushies, Yak, Speed, Green, Ox, Perc, Hydro's, Flex, Trazadone, or Molly. They are Lights/Aura's that emit energy that you transmit from your neurons that have been overloaded by doses. Your Inner Eye Precieves them as a hallucination, but they are real.

Tracers are Life Altering, Take Percaution when Following them, especially if your outside or on a train track when trippin.

In the US military, a person with red hair. This comes from comparing them to a "tracer", a firearms cartridge that has a bit of burning magnesium at the base of the bullet, which burns and can be seen as the bullet flies through the air.

The term "tracer" can refer to either their hair resembling the red path of a tracer bullet flying, or the fact that tracer ammunition in NATO has the tips of the bullets painted red so that specialized ammo can be visually identified.

(to a redheaded coworker) Hey, you over there by the water-bull, getcher ass over here! No, not you Sanchez, that tracer ass-hat next to you... that redheaded assclown.

A Tracer is the vortex shaped trail of webster residue left in the toilet bowl after a large deuce has been flushed. As the Cosby nugget circles after flushing, its relatively heavy weight causes it to drag. Its greasy composition leaves a visible residue that subsequent flushes will not remove. A Catchers mitt can greatly alleviate the Tracer's effect. This situation will be more pronounced in individuals that consume largely Hispanic or deep fried diets.

Dude, you need to cut down on the KFC. You're leaving Tracers in the bowl!